Roaming in highly excited states: The central atom elimination of triatomic molecule decomposition

Li, Zhenxing1; Fu, Yan-lin1; Luo, Zijie1,2; Yang, Shuaikang1; Wu, Yucheng1,3; Wu, Hao1,3; Wu, Guorong1; Zhang, Weiqing1; Fu, Bina1,3,5; Yuan, Kaijun1,3,5; Zhang, Donghui1,3,5; Yang, Xueming1,4,5

2024-02-16

10.1126/science.adn3357

SCIENCE   影响因子和分区

0036-8075

1095-9203

Chemical reactions are generally assumed to proceed from reactants to products along the minimum energy path (MEP). However, straying from the MEP-roaming-has been recognized as an unconventional reaction mechanism and found to occur in both the ground and first excited states. Its existence in highly excited states is however not yet established. We report a dissociation channel to produce electronically excited fragments, S(D-1)+O-2(a(1)Delta(g)), from SO2 photodissociation in highly excited states. The results revealed two dissociation pathways: One proceeds through the MEP to produce vibrationally colder O-2(a(1)Delta(g)) and the other yields vibrationally hotter O-2(a(1)Delta(g)) by means of a roaming pathway involving an intramolecular O abstraction during reorientation motion. Such roaming dynamics may well be the rule rather than the exception for molecular photodissociation through highly excited states.

SCI

英语

其他

National Natural Science Foundation of China["22241304","22225303"] ; National Natural Science Foundation of China (NSFC Center for Chemical Dynamics)[22288201] ; Scientific Instrument Developing Project of the Chinese Academy of Sciences[GJJSTD20220001] ; Innovation Program for Quantum Science and Technology["2021ZD0303304","2021ZD0303305"] ; National Natural Science Foundation of China["22173099","22203092"] ; Dalian Innovation Support Program[2021RD05] ; Guangdong Science and Technology Program["2019ZT08L455","2019JC01X091"] ; Shenzhen Science and Technology Program[ZDSYS20200421111001787]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:001163939900031

AMER ASSOC ADVANCEMENT SCIENCE

BIOLOGY & BIOCHEMISTRY ; CLINICAL MEDICINE ; MULTIDISCIPLINARY ; PLANT & ANIMAL SCIENCE ; ENVIRONMENT/ECOLOGY ; SOCIAL SCIENCES, GENERAL ; MICROBIOLOGY ; ECONOMICS BUSINESS ; IMMUNOLOGY ; MATERIALS SCIENCE ; MATHEMATICS ; COMPUTER SCIENCE ; SPACE SCIENCE ; MOLECULAR BIOLOGY & GENETICS ; CHEMISTRY ; PSYCHIATRY/PSYCHOLOGY ; NEUROSCIENCE & BEHAVIOR ; PHYSICS ; GEOSCIENCES ; ENGINEERING

Web of Science

1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam & Dalian Coherent Li, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Dalian Maritime Univ, Marine Engn Coll, Liaoning 116026, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Southern Univ Sci & Technol, Coll Sci, Ctr Adv Light Source Res, Dept Chem, Shenzhen 518055, Peoples R China
5.Hefei Natl Lab, Hefei 230088, Peoples R China

Li, Zhenxing,Fu, Yan-lin,Luo, Zijie,et al. Roaming in highly excited states: The central atom elimination of triatomic molecule decomposition[J]. SCIENCE,2024,383(6684).

Li, Zhenxing.,Fu, Yan-lin.,Luo, Zijie.,Yang, Shuaikang.,Wu, Yucheng.,...&Yang, Xueming.(2024).Roaming in highly excited states: The central atom elimination of triatomic molecule decomposition.SCIENCE,383(6684).

Li, Zhenxing,et al."Roaming in highly excited states: The central atom elimination of triatomic molecule decomposition".SCIENCE 383.6684(2024).